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    • Forked from Reform / reform-boundary-uboot
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    fs/fat/fat_write: Fix management of empty files
    Benoît Thébaudeau authored 
    Overwriting an empty file not created by U-Boot did not work, and it
could even corrupt the FAT. Moreover, creating empty files or emptying
existing files allocated a cluster, which is not standard.

Fix this by always keeping empty files clusterless as specified by
Microsoft (the start cluster must be set to 0 in the directory entry in
that case), and by supporting overwriting such files.

Signed-off-by: default avatarBenoît Thébaudeau <benoit@wsystem.com>
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